school shooting has reopened a controversial debate over gun control, over mental health as well, but it begs the question will this tragedy be the tipping point in the fight over gun control specifically. i want to bring in some friends of the show right now, ischwab moody mills of the center for american progress, david nakamura and matt welch, editor-in-chief for "reason" magazine. matt, i want to start with you, i've met your 4-year-old daughter, a delightful young lady and i know your politics more than most is a bit nuanced. your perspective not to over state it, your perspective is a bit unique generally. what's your take on a discussion right now? are we talking about the right things as it pertains to -- to this tragedy? >> you know, i think that there's a -- a belief and it's somewhat wrong that we don't have this discussion. i've heard a lot of people saying on twitter it's time that we finally have a discussion about guns in society and gun laws. we actually do have this discussion, not just with every one of these just awful, you know, mind-boggling tragedies, but in general. we'